Your website is no longer a static brochure: it is the entry point where quote requests, room reservations or appointments are made. Companies in PACA — high-end hotels in the Alpilles, medical practices in Avignon, B2B distributors — already use a CRM, planning software or an ERP. The challenge is to avoid double entry and transition Excel files which become saturated during the high season.

Les API (programming interfaces) allow two apps to exchange data in a controlled manner: create a lead in the CRM upon submission of a form, display the actual availability of a gîte, synchronize a product catalog with inventory management. Each integration must be thought of as a product: scope, sync frequency, error management and access rights.

A good integration is judged when you wake up on Monday: the data is there, without duplicates, and the sales team does not need to copy and paste.

Typology of useful integrations for an SME

We often distinguish three levels: read only (display slots or stocks), simple write (creation of contact or ticket), and transactions (payment, electronic signature, reservation with deposit). Level 3 requires secure protocols, logging and often enhanced compliance (health, financial data).

Questions to ask before development

  • Does the SaaS provider expose a Documented API and stable (versioning)?
  • Is there a reliable no-code connector, or is it custom-made?
  • What is the plan B if the API is unavailable (queue, user message)?
  • Who hosts the secrets (API keys) and how are they renewed?

Security, GDPR and connector maintenance

Each data flow must respect the principle of minimization : only transmit the necessary fields. Authentication tokens should never be exposed on the browser side for sensitive actions — going through a backend or serverless service is often essential.

For a web agency accustomed to projects in Alpilles and Provence, support ranges from the audit of existing tools to the development of lightweight middleware, including realistic load tests before traffic peaks. Connecting your site properly saves human time and reassures the end customer with always up-to-date information.